3Com SUPERSTACK 3CR16110-95, Руководство пользователя, Страница: 153 / 214

11
A
DMINISTRATION AND
A
DVANCED
O
PERATIONS
This chapter provides some background on Firewall concepts and
describes some administration functions not available through the menu
structure. The following sections are covered in this chapter:
■
Introducing the Web Site Filter
■
Activating the Web Site Filter
■
Using Network Access Policy Rules
■
Resetting the Firewall
■
Direct Cable Connection
Introducing the
Web Site Filter
The 3Com SuperStack 3 Web Site Filter (3C16111) provides the
SuperStack 3 Firewall with enhanced Internet filtering capabilities. It can
control access from the LAN to thousands of Web sites that might be
deemed inappropriate for business use. Twelve selectable Web site
categories are provided so Internet access can be tailored to the needs of
the organization. Just like the Custom List and filtering by Keywords (see
Chapter 8), access to these sites can be enabled or disabled.
The 3Com Web Site Filter is provided as a 12-month subscription, and
can be automatically updated weekly to ensure that the filter keeps pace
with the ever-changing Internet.
The Firewall comes with a one-month subscription free of charge.
The 3Com Web Site Filter uses the CyberNOT list, which is licensed from
The Learning Company. This list is developed and maintained by The
Learning Company's Cyber Patrol unit.
The sites on the CyberNOT List are reviewed by a team of Internet
professionals, including parents and teachers. They use a set of criteria
that categorizes Internet sites and resources according to the level of
possibly objectionable content.
DUA1611-0AAA02.book Page 153 Thursday, August 2, 2001 4:01 PM